product section design

hi all!

building a product page on 7.1 version, here is the link to the page, 

https://www.pietrofavaron.com/prints/p/sunset-burn-h5rtk-886xa

as you can see the righ side of the page is the title and details, I would love to have that right side to stay where it is when you land on the page and do not scroll up as its doing right now, just the left side can scroll up so you see al the images...do you have any suggestion? 

many thanks!